Thermal Magnetic Circuit Breakers

Thermal magnetic circuit breakers are devices that provide protection against overcurrent in circuits. Circuit breakers use an automatically operated electrical switch to disrupt the flow of current when an overload or short circuit is detected. Thermal magnetic circuit breakers do this using an electromagnet and bimetallic strips. 


Circuit breakers provide more sophisticated protection against overcurrent than a simple fuse. Fuses simply burn out and have to be replaced, whereas circuit breakers just need to be reset.


How do thermal magnetic circuit breakers work?

In thermal magnetic circuit breakers, there are two ways the flow of current might be detected and disrupted. In the event of a short circuit, the electromagnet rapidly trips the switch. If the overload is smaller, over a longer period of time, the bimetallic strips will instead eventually react to trip the switch. 


What are thermal magnetic circuit breakers used for?

Thermal magnetic circuit breakers are most often used in distribution boards. They make up part of the subsidiary circuits in the broader electrical supply system, protecting against overcurrent.


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Omschrijving Prijs Current Rating Number of Poles Range Voltage Rating Width Series Application Break Time Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type Mounting Hole Diameter Mounting Hole Length Mounting Hole Size Mounting Hole Width
RS-stocknr. 284-6101
Fabrikantnummer4410.0106
FabrikantSchurter
€ 19,79
Each
Aantal stuks
10A 1 - 240V ac 11.5mm T12 - - - - - - - -
RS-stocknr. 782-0892
FabrikantnummerW58-XB1A4A-10
FabrikantTE Connectivity
€ 6,86
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10A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-stocknr. 273-0882
Fabrikantnummer1658-G21-02-P10-15A
FabrikantETA
€ 7,17
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15A 1 - - 32mm 1658 - - - - - - - -
RS-stocknr. 849-5945
FabrikantnummerCBC-50HB
FabrikantCooper Bussmann
€ 11,70
Each (In a Pack of 10)
Aantal stuks
50A - - 14V dc - CBC-HB - - - - - - - -
RS-stocknr. 312-3639
FabrikantnummerGB2CB06
€ 18,41
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1A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 272-909
FabrikantnummerGV3P25
€ 158,53
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- 3 TeSys 690V ac 55mm GV3 - - 6 kA - - - - -
RS-stocknr. 899-1664
Fabrikantnummer2DU32R
FabrikantAltech
€ 20,47
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32A 2 - 480Y/277V - R Appliance Circuit, Control Transformers, Power Supplies, Power Supplies and Reactive Loads, Sensitive Electronics, UL1077 Application Time Delay 10 kA MCCB - - - -
RS-stocknr. 899-4931
Fabrikantnummer3D1UM
FabrikantAltech
€ 46,063
Each (In a Pack of 4)
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1A 3 - 480Y/277V - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, Heaters and Reactive Loads, High Inrush Motors, Power Supplies, Transformers, UL508 Application Time Delay 10 kA MCCB - - - -
RS-stocknr. 774-0027
FabrikantnummerFC6610A
€ 5,86
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10A - - - 11mm A-0709 - - - - - - - -
RS-stocknr. 323-8983
FabrikantnummerGB2CD05
€ 34,70
Each
Aantal stuks
500mA 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 868-9175
Fabrikantnummer4430.2196
FabrikantSchurter
€ 22,95
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Aantal stuks
20A - - 125/250V - ABD - - - MCB - - - -
RS-stocknr. 868-9042
Fabrikantnummer4430.0034
FabrikantSchurter
€ 15,609
Each (In a Pack of 20)
Aantal stuks
16A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 409-895
Fabrikantnummer1610-21-15A
FabrikantETA
€ 12,62
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15A 1 - 32V dc 20mm 1610 - - - - - - - -
RS-stocknr. 173-9839
Fabrikantnummer4400.0002
FabrikantSchurter
€ 5,023
Each (In a Box of 100)
Aantal stuks
2A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 881-5093
FabrikantnummerMU1-B-34-430-1-A21-B-D
€ 9,22
Each
Aantal stuks
3A 1 - - - M Automotive, Communication Equipment, Generators, Marine Applications, Medical Equipment, Power Supplies Medium 600 A @ 80 V dc MCB 9.5mm - 9.53 (Dia.)mm -
RS-stocknr. 899-4537
Fabrikantnummer3C10UM
FabrikantAltech
€ 46,06
Each
Aantal stuks
10A 3 - 480Y/277V - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, Appliances, Business Equipment, Control Circuit Applications, Lighting, Low Inrush Motors, UL508 Application, Wiring Protection Time Delay 10 kA MCCB - - - -
RS-stocknr. 881-1085
FabrikantnummerCLB-253-11A3N-B-A
€ 4,63
Each
Aantal stuks
25A 1 - - - CLB Audio Visual Equipment, Household Appliances, Marine Applications, Medical Equipment, Power Strips, Power Supplies, Transportation Time Delayed 2500 A @ 32 V dc - - 10mm 10 x 11.2mm 11.2mm
RS-stocknr. 881-4920
FabrikantnummerC1005B-3B101BR3
€ 1,758
Each (In a Pack of 10)
Aantal stuks
10A - - - - C1005B Audio Visual Equipment, Commercial Applications, Generators, Household Appliances, Marine Applications, Medical Equipment, Power Strips, Power Supplies, Telecommunications, Transportation Time Delayed 1000 A - - 14mm 14 x 28.6mm 28.6mm
RS-stocknr. 899-1816
Fabrikantnummer2EU05
FabrikantAltech
€ 43,37
Each
Aantal stuks
500mA 2 - - - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, High Efficiency Motors, UL508 Application, Which have Exceedingly High Inrush Current Time Delay 10 kA MCCB - - - -
RS-stocknr. 881-0811
FabrikantnummerCA1-B0-34-275-121-D
€ 42,683
Each (In a Pack of 6)
Aantal stuks
750mA 1 - - - C General Purpose Medium 10000 A @ 277 V ac, 5000 A @ 125/250 V dc MCCB - 19.3mm 19.3 x 52.37mm 52.4mm
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